Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/08/2026, 10:53
General
- Target 2026-08-08_4aa6e4db9c720d03374927f1fe21ab97_cryptolocker_elex.exe
- Size 57KB
- Sample260808-my22esdr4x
- SHA256 7246d0500b7b0244c0d91189c427754521943c3a1aa0a43013630c53e10da71e
Malware Config
Signatures
- Detection of CryptoLocker Variants 6 IoCs
- UPX dump on OEP (original entry point) 6 IoCs
- Executes dropped EXE 1 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_4aa6e4db9c720d03374927f1fe21ab97_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_4aa6e4db9c720d03374927f1fe21ab97_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
rewok.exe
memory/2496-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2496-1-0x0000000000404000-0x0000000000405000-memory.dmp
memory/2496-2-0x00000000021F0000-0x00000000021F6000-memory.dmp
memory/2496-3-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2496-4-0x0000000000400000-0x0000000000406000-memory.dmp
memory/5196-21-0x0000000000400000-0x000000000040E000-memory.dmp
memory/5196-29-0x0000000000400000-0x000000000040E000-memory.dmp
memory/5196-23-0x0000000000400000-0x0000000000406000-memory.dmp
memory/5196-30-0x0000000000400000-0x000000000040E000-memory.dmp
memory/5196-32-0x0000000000400000-0x000000000040E000-memory.dmp